Add panel border options to theme editor

git-svn-id: https://plugins.svn.wordpress.org/megamenu/trunk@945075 b8457f37-d9ea-0310-8a92-e5e31aec5664
Change default effect to disabled

git-svn-id: https://plugins.svn.wordpress.org/megamenu/trunk@945077 b8457f37-d9ea-0310-8a92-e5e31aec5664